(19)

(11)

EP 2 618 919 A2

(12)

(88) Date of publication A3: 10.05.2012 (43) Date of publication: 31.07.2013 Bulletin 2013/31 (21) Application number: 11827437.2 (22) Date of filing: 21.09.2011

(51) International Patent Classification (IPC):  B01F 3/04(2006.01) B01J 10/00(2006.01) (86) International application number: PCT/US2011/052542 (87) International publication number: WO 2012/040321 (29.03.2012 Gazette 2012/13)

(84) Designated Contracting States: AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR (30) Priority: 22.09.2010 US 887535 (71) Applicant: Grupo Petrotemex, S.A. de C.V. 66265 San Pedro Garza Garcia, Nuevo Leon (MX)	(72) Inventor: SHAIKH, Ashfaq Kingsport, TN 37660 (US) (74) Representative: Tostmann, Holger Carl  Wallinger Ricker Schlotter Tostmann Patent- und Rechtsanwälte Zweibrückenstrasse 5-7 80331 München 80331 München (DE)